Camera [Q] Slow Motion filming


This is my first post on the forums, altough I have been browsing for a long time.
I own a galaxy S4 I9505, obviusly otherwise I won't be posting here.
I don't see a recent post about my question so I will be asking it here.
My galaxy S4 has a custom rom [ ] for those who want to know which one.
I know it is not possible to have the stock touchwiz camera app on my custom rom. But what I am searching is a replacement app that can film in slowmotion (high fps) like the stock camera app.
I have been searching google and these forums for a long time, but I really don't find it anywhere :/
I hope you guys can help me